Anatomy
These structures are long, covered in suckers, and are designed for grabbing prey.
What are tentacles?
This tooth covered mouthpart grinds food into small pieces (mechanical digestion) before it passes into the esophagus.
What is a radula?
This male organ produces sperm.
What is testes?
When threatened, cephalopods do this for defense:
This class consists of octopi, squid, and cuttlefish:
What is cephalopoda?
Acts as a calcium carbonate support rod in the dorsal end of the squid.
What is a pen?
This muscular mouth cavity powers the force of the beak.
What is the buccal cavity?
This female organ produces and holds eggs.
What is an ovary?
Clams, mussels, scallops, etc. do this to feed.
What is filter feeding?
This class consists of snails, slugs, and nudibranchs:
What is gastropoda?
This structure expels water from the squid to aid in propulsive movement.
What is a siphon?
The primary site of nutrient absorption in the digestive system.
What is the cecum?
Cephalopods do this after they lay eggs.
What is die?
Cephalopods do this to feed:
What is hunt/predation?
This class consists of clams, oysters, and mussels:
What is bivalvia?
These color changing cells on the squid's skin enable camouflage and communication.
What are chromatophores?
These structures pump oxygenated blood to the systemic heart.
What are gill hearts?
This female organ produces a coating for eggs.
What is the nidamental gland?
How do clams use their foot for locomotion?
What is burrowing into substrate?
This class consists of organisms with a shell of 8 overlapping plates:
What is polyplacophora?
This pouch of thick skin contains the squid's internal organs.
What is a mantle?
This structure controls and moves the siphon.
What is the siphon retractor muscle?
This male organ stores sperm after it is produced.
What is the seminal vesicle?
Explain two positive impacts that molluscs can have on an ecosystem:
This class includes tusk shells which capture prey using small tentacles call captacula.
What is scaphopoda?